年产五千万安时554267-3.7V-2250mAh医疗设备聚合物锂电池生产工艺及车间设计
北京理工大学珠海学院2020届本科生毕业设计The Process and Workshop Design of 554267-3.7V-2250mAhPolymer Lithium Batteries for Medical Equipment with 50million Ah Yearly OutputAbstrac...
钛酸锶的光催化产氢性能研究
钛酸锶的光催化产氢性能研究AbstractWith the global environmental pollution and energy crisis becoming severe increasingly,research and development of clean and renewable energy has ...
质量控制在凯氏定氮仪测定土壤阳离子交换量中的应用研究
下水中的污染物最终都会与土壤发生迁移、转换，最终达到平衡。土壤胶体内部存在一定的双电层，所谓的离子交换就是在相应的扩散层当中，相应的补偿离子能够与溶液当中游离态的电荷完成等价交换，...
异厚板铝合金搅拌摩擦焊的温度场模拟
ABSTRACTIn this paper,the temperature field distribution of aluminum alloy with differentthickness was studied by ABAQUS finite element software.Several groups ofdifferent welding ...
OPPO企业实施物流外包影响因素分析（开题）
求的增长和物流服务供应商服务能力的扩充和完善，物流业务外包服务将逐步被社会认识、了解、认可和进一步采用。电子商务发展环境随着市场以及消费者需求变化，企业实施物流外包影响因素也随之变...
高年级小学生厌学数学的原因及对策研究——以奎屯市第Y小学为例
43高年级小学生数学厌学数学的外因分析…84.3.1数学学科的特点94.3.2教师94.3.3家长…94.3.4社会.105解决高年级小学生数学厌学数学的对策...........105.1学生层面原因及对策105.2教师层面原因...
高考数列题的考题分析与解题方法研究
AbstractThe number sequence problem is an important content of high school mathematics andone of the hot spots of the college entrance examination.The common test method of thenumb...
浅谈初中数学一元一次方程的教学设计
AbstractThe first order equation is an important content of junior high schoolmathematics,and it is also a key link that closely links mathematics with real life,which plays an imp...
两类半马尔可夫跳变系统的有限时间H-无穷控制
AbstractNetworked nonlinear semi-Markovian jump systems and T-S fuzzy semi-Markovianjump delay systems have wide applications in practical fields.The finite-time Hoo con-trol probl...
